1. Clean the surface of the purchased clam under clean water, and then put it in a clean basin. It is best to pour some warm salt water into the basin.

2. Then drop some oil into the basin, stir it quickly with chopsticks, so that the water surface forms a film, and then isolates the air exchange between the water and the outside, so that the clams will continue to cook. I want to open my mouth and breathe.

3. Find an iron lid and gently place the lid on the pot. Then we lift the pot and gently shake it up, down, left and right. At this time, be careful not to shake it too much. We only need to gently shake the pot with the clams in it.

4. After the shaking is completed, open the lid. At this time, you will find that the water in the basin begins to become very turbid, and the clams have begun to spit out a large amount of sand on their own initiative.

Extended information:

Life habits:

Clams use their well-developed ax legs to dig sand and mud to live in caves. When the tide is high, it rises to the beach and stretches out its water pipe to carry out activities such as breathing, feeding and excretion; after the dry tide or when encountering external stimulation, the double shells are tightly closed, or it relies on the telescopic activities of the feet to return to the bottom of the cave and rest on the beach. Leave two holes formed by the outlet and inlet pipes close together.

The burrowing depth of clams varies with their individual size, substrate composition and season. Small individuals, those with softer substrate, or during seasons with higher water temperatures, will burrow shallower; while larger individuals, those with harder substrate, or during colder winters, will dive deeper. But generally speaking, the depth of cave dwellings is generally around 3-15 cm.